One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,5,4)(3,7,8,6)(9,10)(11,15)(12,13)(14,16)(17,18,24,28)(19,22,21,25)(20,29,31,26)(23,27,32,30)(1,3,5,8)(2,6,4,7)(17,19,24,21)(18,25,28,22)(20,30,31,27)(23,29,32,26)(1,2,5,4)(3,6,8,7)(10,13)(14,15)(17,20,24,31)(18,26,28,29)(19,27,21,30)(22,23,25,32)(9,10)(11,14)(12,13)(15,16)(17,21,24,19)(18,22,28,25)(20,27,31,30)(23,26,32,29)(9,11,12,16)(10,14,13,15)(17,22)(18,19)(20,23)(21,28)(24,25)(26,27)(29,30)(31,32)(1,4,5,2)(3,7,8,6)(17,23)(18,27)(19,29)(20,25)(21,26)(22,31)(24,32)(28,30)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.